Autonomous system
AS28202 MASTER SA
Unclassified LACNIC
Summary
Master Internet
residential cable isp brazil
AS28202 is operated by Master Internet, a Brazilian cable television and internet service provider.
What it's used for
- The address space carries residential and business access traffic, evidenced by reverse DNS entries such as
mastercabo.com.brandsoumaster.com.brwith hostnames indicating cable (cb) and fiber (fb) connections. - The AS announces 212,992 IPv4 addresses across 133 prefixes and 45 IPv6 prefixes, while maintaining 69 observed neighbours; this high address-to-neighbour ratio is characteristic of an access network serving end-users rather than a transit provider.
Notable
- All sampled RDAP registrants are listed as
MASTER S/A, which aligns directly with the AS holder name. - The address inventory is finely subdivided into numerous /19, /20, and /21 blocks, reflecting a large, segmented customer base typical of a regional cable operator.
This description is AI-generated, best-effort context — not authoritative, and provided without any guarantee of accuracy. Source, and how to suggest an edit.
Interconnection
Peering at a glance
Internet exchanges
Recorded at 2 exchanges in 1 country, largest first.
| Exchange | Location | Their address |
|---|---|---|
| IX.br (PTT.br) São Paulo | São Paulo, Brazil | 187.16.212.212 |
| IX.br (PTT.br) Belo Horizonte | Belo Horizonte, Brazil | 200.219.139.130 |
Transit providers
9 upstream, 33 downstream and 78 adjacent networks observed; most-used upstreams first.
Exchange presence is recorded rather than inferred: the directory collected by Packet Clearing House (https://www.pch.net/ixp/data) on 2026-10-13, licensed CC BY-NC-SA 3.0. Transit is inferred from observed BGP paths, never declared by either party.
Address space
Summary
IPv4 77 prefixes · 213K addresses IPv6 43 prefixes
| Country | Name | Prefixes |
|---|---|---|
| BR | Brazil | 120 |
Registry
Allocation record
- Registry
- LACNIC
- Registered
- 2008-04-09
- Allocation
- allocated
Routing security
RPKI and IRR
- RPKI
- 100% valid · 1,147 valid, 0 with no ROA
- ROAs
- 11 authorising AS28202
- ASPA
- no ASPA record
- IRR
- 100% registered · 1,147 of 1,147 announcements
- Route objects
- 1,211 naming AS28202
Reputation
Classification and threat
Unclassified Not in the curated lists. Most of the ~80,000 allocated ASNs are not.
Spamhaus DROP
Not on ASN-DROP The network as a whole is not listed.
No DROP prefixes None of its announced space is on the DROP prefix list.
Spamhaus DROP ("Don't Route Or Peer") lists space and networks run by, or hijacked for, spam and cybercrime operations: 436 networks and 1,771 prefixes, as published 2026-10-13. A short, high-confidence list, so a match is worth taking seriously, and absence from it says little on its own.
FBI IC3
No IC3 indicators Nothing from the FBI IC3 feed.
IC3 threat data is alpha. Absence of an indicator is not evidence of good behaviour, only of absence from this one feed.
Elsewhere